# Like a line at a shop. First person in, first person out. # Order of insertion is what matters. # Use collections.deque (not a list) — O(1) on both ends. queue.append(5) # push to back → [5] ...
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class ...
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